The 1966 Tarzan most people mean is the Ron Ely TV series (aired 1966–68). It marked a deliberate “modernized” Tarzan: literate, articulate, and no longer defined by the Jane relationship; production shot early episodes in Brazil then moved to Mexico; it ran 57 hour-long episodes and kept familiar elements like the Tarzan yell and Cheeta.

Tarzan 1966 Internet Archive

The 1966 Tarzan most people mean is the Ron Ely TV series (aired 1966–68). It marked a deliberate “modernized” Tarzan: literate, articulate, and no longer defined by the Jane relationship; production shot early episodes in Brazil then moved to Mexico; it ran 57 hour-long episodes and kept familiar elements like the Tarzan yell and Cheeta.